Two Queens teens were arrested for gunning down an 18-year-old after the shooting was caught on camera — and each have since been charged with separate attempted murders, cops said today.

Sean Barnhill, 19, and Alexander Burgess, 16, allegedly shot and wounded Daryl Adams, 18, then chased him down and shot him again after he collapsed to the ground at 12:30 a.m. Friday, cops said. The heartless killers were cuffed seconds later by police who tracked their movement on surveillance cameras mounted in the Jamaica housing project, and both have been charged with murder.

Barnhill has since been charged with attempted murder for shooting a man in an attempted cell phone robbery in Rosedale on March 1. Burgess has also been charged with attempted murder for shooting a man in the arm and stomach in Jamaica on February 25.

A search warrant obtained in connection with the investigation of the Jamaica murder on 159th Street near 107th Avenue led to a raid on a Rosedale home that netted five guns – a .38-caliber revolver and four semi-automatic pistols – and 11 arrests for criminal possession of a weapon.

A 17-year-old caught in the raid was with Barnhill at the March 1 shooting and has also been charged with attempted murder, and another 17-year-old who accompanied Burgess at the February shooting has also been charged with attempted murder.